The Global Volcanism Program has no activity reports for Ugashik-Peulik.

The Global Volcanism Program has no Weekly Reports available for Ugashik-Peulik.

The Global Volcanism Program has no Bulletin Reports available for Ugashik-Peulik.

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.

Synonyms

Puyulek | Bocharova (?) | Smoky Mountain

Cones

Feature Name

Feature Type

Elevation

Latitude

Longitude

Peulik

Stratovolcano

1474 m

57° 45' 3" N

156° 22' 5" W

Craters

Feature Name

Feature Type

Elevation

Latitude

Longitude

Ugashik

Pleistocene caldera

914 m

57° 43' 43" N

156° 22' 10" W

Basic Data

Volcano Number

Last Known Eruption

Elevation

LatitudeLongitude

312130

1814 CE

1474 m / 4836 ft

57.751°N
156.368°W

Volcano Types

Stratovolcano Caldera Lava dome(s)

Rock Types

MajorAndesite / Basaltic AndesiteBasalt / Picro-BasaltDaciteRhyolite

Tectonic Setting

Subduction zoneContinental crust (> 25 km)

Population

Within 5 kmWithin 10 kmWithin 30 kmWithin 100 km

0
0
0
102

Geological Summary

The Ugashik-Peulik volcanic complex lies south of Becharof Lake and east of Upper Ugashik Lake. Late-Pleistocene caldera formation was followed by the emplacement of at least five Holocene lava domes within the 4.5-km-wide caldera. Most of the caldera walls consist of basement sandstones of Jurassic age. Following caldera formation the small, 3 km3 Peulik stratovolcano grew 2.5 km to the N. Lava flows from Peulik cover the caldera rim to the south and extend to Becharof Lake, 6 km N. A small lava dome on the E flank of Peulik was the source of a small block-and-ash flow. The summit of Peulik contains a 1.5-km-wide crater breached to the west that is partially filled by a lava dome. Debris-avalanche deposits cover a 75 km2 area to the NW. A single documented historical eruption took place from Peulik in 1814.

References

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography.

Emission History

There is no Emissions History data available for Ugashik-Peulik.

Photo Gallery

Mount Peulik is a 1474-m stratovolcano that was constructed immediately north of Ugashik caldera. It is seen here from NW near Ukinrek Maars. The hummocky terrain in the middle distance is a debris-avalanche deposit produced by collapse of ancestral Peulik volcano. Only one historical eruption, in 1814, is known from Peulik.

The 4.5-km-wide Ugashik caldera was formed during the late Pleistocene. Five unglaciated Holocene lava domes occupy the caldera, seen here from the east with Upper Ugashik Lake in the background. The small Peulik stratovolcano was constructed immediately north of the caldera, out of view to the right, and partially overtops the caldera rim. Puelik has a summit crater that is breached to the west and contains a dacitic lava dome.

GVP Map Holdings

The maps shown below have been scanned from the GVP map archives and include the volcano on this page. Clicking on the small images will load the full 300 dpi map. Very small-scale maps (such as world maps) are not included. The maps database originated over 30 years ago, but was only recently updated and connected to our main database. We welcome users to tell us if they see incorrect information or other problems with the maps; please use the Contact GVP link at the bottom of the page to send us email.

Affiliated Sites

The DECADE portal, still in the developmental stage, serves as an example of the proposed interoperability between The Smithsonian Institution's Global Volcanism Program, the MAGA Database, and the EarthChem Geochemical Portal. The Deep Earth Carbon Degassing (DECADE) initiative seeks to use new and established technologies to determine accurate global fluxes of volcanic CO2 to the atmosphere, but installing CO2 monitoring networks on 20 of the world's 150 most actively degassing volcanoes. The group uses related laboratory-based studies (direct gas sampling and analysis, melt inclusions) to provide new data for direct degassing of deep earth carbon to the atmosphere.

WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.

Middle InfraRed Observation of Volcanic Activity (MIROVA) is a near real time volcanic hot-spot detection system based on the analysis of MODIS (Moderate Resolution Imaging Spectroradiometer) data. In particular, MIROVA uses the Middle InfraRed Radiation (MIR), measured over target volcanoes, in order to detect, locate and measure the heat radiation sourced from volcanic activity.

Using infrared satellite Moderate Resolution Imaging Spectroradiometer (MODIS) data, scientists at the Hawai'i Institute of Geophysics and Planetology, University of Hawai'i, developed an automated system called MODVOLC to map thermal hot-spots in near real time. For each MODIS image, the algorithm automatically scans each 1 km pixel within it to check for high-temperature hot-spots. When one is found the date, time, location, and intensity are recorded. MODIS looks at every square km of the Earth every 48 hours, once during the day and once during the night, and the presence of two MODIS sensors in space allows at least four hot-spot observations every two days. Each day updated global maps are compiled to display the locations of all hot spots detected in the previous 24 hours. There is a drop-down list with volcano names which allow users to 'zoom-in' and examine the distribution of hot-spots at a variety of spatial scales.

EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).